The dimensionality of political space: Epistemological and methodological considerations

Kenneth Benoit, Michael Laver

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Spatial characterizations of agents' preferences lie at the heart of many theories of political competition. These give rise to explicitly dimensional interpretations. Parties define and differentiate themselves in terms of substantive policy issues, and the configuration of such issues that is required for a good description of political competition affects how we think substantively about the underlying political space in which parties compete. For this reason a great deal of activity in political science consists of estimating such configurations in particular real settings. We focus on three main issues in this article. First, we discuss the nature of political differences and from this construct an interpretation of the dimensionality of the political space needed to describe a given real setting, underscoring the essentially metaphorical and instrumental use of this concept. Second, we contrast ex ante and ex post interpretations of this dimensionality. Third, we illustrate potential hazards arising from the purely inductive estimation of political spaces using a spatial example from the physical world and political competition in the European Parliament as a political example.

    Original languageEnglish (US)
    Pages (from-to)194-218
    Number of pages25
    JournalEuropean Union Politics
    Volume13
    Issue number2
    DOIs
    StatePublished - Jun 2012

    Keywords

    • expert surveys
    • ideal point estimation
    • party competition
    • policy dimensions
    • policy positions

    ASJC Scopus subject areas

    • Health(social science)
    • Demography
    • Political Science and International Relations

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